The San Francisco 49ers have picked up an additional $2 million of salary cap space as a result of one of their players opting to not participate in the team's voluntary offseason workout program.

Cornerback Tarell Brown had triggered a $2 million escalator to his 2013 base salary and was scheduled to earn $2.925 million in the final year of his contract. However since Brown opted to do his offseason training at his home in Texas instead of participating in the 49ers' workout program in Santa Clara Calif. that escalator has voided and his base salary has returned to his original $925000 a source with knowledge of Brown's contract details confirmed to "Shutdown Corner". Brown was also scheduled to receive a $75000 workout bonus but that has vanished as well.

As of Wednesday July 24 the 49ers were $7.4 million under their adjusted cap number of $125.773 million.

Brown a 2007 fifth-round pick out of the University of Texas had signed a three-year contract extension with the 49ers midway through the 2009 season. Brown has emerged as a starter over the last 32 regular season games totaling 97 tackles six interceptions and 29 passes defensed while playing in 98.3 percent of the 49ers' 2074 defensive snaps. Brown also has a pair of interceptions in five playoff games over the last two seasons.

Though Brown skipped the voluntary portion of the workout program he did participate in the 49ers' mandatory minicamp in June. Prior to those workouts Brown explained to Cam Inman of the Bay Area News Group that he was going to leave it up to his agent on whether or not to hold out of training camp to get a new contract and gave his reason for skipping the voluntary OTAs.

"For me I wanted to do a different type of training to get my body ready" Brown said. "Last year I feel my body broke down a bit at the end of the season."

With Brown losing that $2 million in salary his contract might be an issue during training camp. Brown is not the only 49ers defensive back who has a contract issue either.